A particle in a 453 m-long particle accelerator is moving at 0.875 c.How long does the particle accelerator appear to the particle?
A)219 m
B)589 m
C)104 m
D)936 m

Question

Quizplus · Accepted Answer

The length contraction formula is L = L0 * sqrt(1 - v^2/c^2), where L0 is the proper length (453 m), v is the velocity (0.875c), and c is the speed of light. Plugging in the values, L = 453 * sqrt(1 - (0.875)^2) = 219 m.

A Particle in a 453 M-Long Particle Accelerator Is Moving